This second stage looks and sounds just like Super Mario Bros. 2, which in turn was based on a Japanese game called Doki Doki Panic (which is why the enemy characters all looked different from the first game). The stage is similar in setup to the first Mushroom Kingdom, but there is much more going on as far as interactive elements go. Although it isn't all that tough to throw your enemies off to the stage to the left or right, you will soon fight that the two trenches in the middle claim the most Smash Bros. fighters in the heat of battle.

Mushroom Kingdom is also one of the few stages that the computer AI sometimes has problems with. You can use this to your advantage to beat Event battles or score a quick victory against a team of AI opponents in melee. If the computer characters try to follow you no matter what, you can make them fall off the stage without you even touching them. Notice how the walls of the left and right portions of the stage are quite high when compared to the middle portion? Pick a fast character with a good recovery move like Pikachu and stand in the middle of the stage. When your opponents are coming at you, jump into the left or the right trench. Perform your double and recovery jump when you're almost at the bottom of the pit and cling on to the edge of the higher portion of the stage and climb up. Don't jump back to the middle portion. Your enemies will try to follow you -- and, more often than not, fail to jump to the top of the high cliff and fall down trying to get to you.

Logs: There are three log platforms on this stage. The middle one is static and won't move. You can't fall through it, either, so tap down as much as you like. However, there are also two moving log platforms that appear in the trenches. You can actually stand on them, but they will quickly fall and disappear. Your best bet is to ignore them completely as they won't trap you or cause you any problems, even if you've fallen into a pit and you're trying to get out.

Friends and Foes: Pidgit and Birdo appear from time to time to spice up the battle. Birdo will walk onto the stage and spit eggs that fly horizontally across the screen. Although they only cause minute damage (1%), they can screw you up if they hit you on your rescue jump or during an attack. You can attack Birdo if you've got some old bill to settle with her. This will prevent her from shooting eggs but doesn't really do anything else. If you end up behind Birdo, watch out as she can push you off screen. Jump, dash or dodge to get past her. Pidgit is a different story entirely. He basically acts as an additional floating platform. Just don't get carried of screen. Smash tap down to drop from his flying carpet.